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4
PROCEDURES AND SETTINGS BEFORE 
OPERATION
4.4 Wiring
4.4.2 Example of wiring the module and an encoder
4
 - 7
1
O
V
ER
VI
E
W
2
S
YST
EM
 
CONF
IGURA
T
ION
3
S
P
E
C
IF
ICA
T
IONS
4
P
R
O
C
EDURES
 AND 
S
E
T
T
INGS
 B
E
F
O
RE
 
OP
E
R
A
T
ION
5
F
UNCT
IONS
6
UT
IL
IT
Y
 P
A
CK
A
G
E
 (
G
X
 
C
onfi
gurato
r-C
T
)
7
P
R
OGRA
M
MING
8
TR
O
U
BL
ESHO
O
T
IN
G
4.4.2
Example of wiring the module and an encoder
Alphanumeric characters in parentheses of QD64D2 terminal parts indicate CH2 terminal 
numbers.
(1) Example of wiring with a line driver (AM26LS31 equivalent) encoder
Figure 4.5 Example of wiring with a line driver (AM26LS31 equivalent) encoder
VCC
0V
B
A
B
A
E
E
VCC
0V
B19(A19)
B18(A18)
PULSE
B-
PULSE
A+
PULSE
B+
PULSE
A-
QD64D2
B17(A17)
B16(A16)
PULSE
COM
B15/A15
27k 
1/10W
27k 
1/10W
4.7k 
1/10W
100 
1/2W
4.7k 
1/10W
27k
1/10W
27k
1/10W
4.7k
1/10W
100
1/2W
4.7k
1/10W
Phase A
Phase B
Digital 
isolator
Line 
receiver
Line 
receiver
Digital 
isolator
Shielded 
twisted pair cable
Shielded 
twisted pair cable
Shield
Shield
Encoder
External 
power supply